/*
 * Copyright (c) 2004-2022, University of Oslo
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 *
 * 3. Neither the name of the copyright holder nor the names of its contributors 
 * may be used to endorse or promote products derived from this software without
 * specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package org.hisp.dhis.dxf2.dataset.streaming;

import org.hisp.dhis.dxf2.dataset.CompleteDataSetRegistration;
import org.hisp.staxwax.reader.XMLReader;
import org.hisp.staxwax.writer.XMLWriter;

/**
 * @author Halvdan Hoem Grelland
 */
public class StreamingXmlCompleteDataSetRegistration extends CompleteDataSetRegistration {
  private XMLWriter writer;

  private XMLReader reader;

  // --------------------------------------------------------------------------
  // Constructors
  // --------------------------------------------------------------------------

  public StreamingXmlCompleteDataSetRegistration(XMLWriter writer) {
    this.writer = writer;
  }

  public StreamingXmlCompleteDataSetRegistration(XMLReader reader) {
    this.reader = reader;
  }

  // --------------------------------------------------------------------------
  // Logic
  // --------------------------------------------------------------------------

  @Override
  protected void open() {
    writer.openElement(FIELD_COMPLETE_DATA_SET_REGISTRATION);
  }

  @Override
  public void close() {
    if (writer == null) {
      return;
    }

    writer.closeElement();
  }

  @Override
  protected void writeField(String fieldName, String value) {
    if (value == null) {
      return;
    }

    writer.writeAttribute(fieldName, value);
  }

  // --------------------------------------------------------------------------
  // Getters and setters
  // --------------------------------------------------------------------------

  @Override
  public String getDataSet() {
    return dataSet = dataSet == null ? reader.getAttributeValue(FIELD_DATASET) : dataSet;
  }

  @Override
  public void setDataSet(String dataSet) {
    writeField(FIELD_DATASET, dataSet);
  }

  @Override
  public String getPeriod() {
    return period = period == null ? reader.getAttributeValue(FIELD_PERIOD) : period;
  }

  @Override
  public void setPeriod(String period) {
    writeField(FIELD_PERIOD, period);
  }

  @Override
  public String getOrganisationUnit() {
    return organisationUnit =
        organisationUnit == null ? reader.getAttributeValue(FIELD_ORGUNIT) : organisationUnit;
  }

  @Override
  public void setOrganisationUnit(String organisationUnit) {
    writeField(FIELD_ORGUNIT, organisationUnit);
  }

  @Override
  public String getAttributeOptionCombo() {
    return attributeOptionCombo =
        attributeOptionCombo == null
            ? reader.getAttributeValue(FIELD_ATTR_OPTION_COMBO)
            : attributeOptionCombo;
  }

  @Override
  public void setAttributeOptionCombo(String attributeOptionCombo) {
    writeField(FIELD_ATTR_OPTION_COMBO, attributeOptionCombo);
  }

  @Override
  public String getDate() {
    return date = date == null ? reader.getAttributeValue(FIELD_DATE) : date;
  }

  @Override
  public void setDate(String date) {
    writeField(FIELD_DATE, date);
  }

  @Override
  public String getStoredBy() {
    return storedBy = storedBy == null ? reader.getAttributeValue(FIELD_STORED_BY) : storedBy;
  }

  @Override
  public void setStoredBy(String storedBy) {
    writeField(FIELD_STORED_BY, storedBy);
  }
}
